Shoe-stamping machine.



UNITBU STATES,

Patented May 19, 19(03.

"PATENT OFFICE.

JOHN J. HEYS, QF LYNN,.MASS AoHuSpTTS, ASSrGNoR or ONE-HALF To MAURICE v. BRESNAHAN, or LYNN, MASSACHUSETTS.

si-lopr-z-sT-AnfPING MACHINE.'

srEcIFIcATIoN forming .part ofl Letters ratentNofreenelr, aatedlvray 19, 1903. Application filed December 3l, 1902. Serial No. 137,248. (No model.) I

To a/ZZ whom #may con/ecrit.'

Beit known that I, JOHN .1.HEYS, of Lynn,

in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Shoe-Stamping Machines, of which the following is a specification.

.This invention has relation to pressesofm the type referred to in my copeding application, Serial No. 67,138, filed July 5, 1901;`

and it has for its object to provide certain irnprovements in presses vof thev type shown therein which preclude the possibility of the movable member slipping under pressure.

On the accompanying drawings, Figure 1 represents alongitudinal section of the machine on a vertical plane from front to rear. Fig. 2 represents a Similar view and shows the movable member in a position ofpressure. Fig. 3 represents a section on the line 3 3 of Fig. 1.

The machine as shown is provided with side standards in which is journaled the main power-shaft o., geared by straight spur-gearing (indicated by dotted lines) with the shaft b. In the top of the machine is mounted what is termed the Stationary member. 1t consists of a turret c, provided with a plurality of dies c', any one of Vwhich may be brought into alinement with the jack or movable member d.

The invention is embodied in the present instance in a machine. for stamping or im-l pressing monograms, trade-marks, orother symbolic representations upon the soles of` boots and shoes. The movable member d, is

therefore in the form of a curved jack, which may be inserted into the-shoe, as shown in Fig. 2. The base d of the jackiSsOcketed to receive a vertically-.movable bar e, which` is arranged to slide in a carrier f. The said carrier is provided at its sides with tubular guides f to slide on upright rods f2, secured to or forming a part of the side standards of the machine. Between the bar e and the base d' of the jack or movable member is inserted a compression-spring d2, which serves a purpose to be subsequently described.

The "carrier j' is provided with forwardly and rearwardly projecting arms or brackets 3, which support a guide-rod f4 for a sliding wedge g. The said wedge rests upon the horizontal surface afforded by the brackets fg'f, and it is guided in its movement by the guide rod f4. The upper surface of the wedge is inclined, and it directly supports the movable bar e, the latter having at its lower end the flanges e', which take over the sides ofthe wedge, as shown in Fig. 3. The carrier itself may be vertically reciprocated, and at the same time the bar e and the movable member thereby supported are moved with respect to the carrier, being raised or lowered as the wedge is moved forwardly or rearwardly, as the case may be.

The carrier f is provided with a roll f5, which rests upon a cam h, fast on the shaft b.' This cam is formed with a dwell a rise I y, consisting of a hardened piece inserted in a socket in the periphery of the cam, and a depressed portion a'.

The lever i is fulcrumed on a stud '112 on one of the standards, and its upper end is connected by a linkj with the wedge. The said lever is also provided with a'cam-flange 2", which may be engaged by a pin or projection rh"'o n a cam h duringl a portion of the rotation of the said cam. A spring k is stretched between the rear portion of the frame and the lever t', so as to hold the lever inwardand to` move the wedge yieldingly to the rear.

The operation of the machine is as follows: A shoe is placed upon the jack when the latter is depressed. The cam rotates -in the direction of'the larrow in Fig'. 1, and the pin h engages the flange t" on the lever/and forces the lever forwardly'or toward the operator.

ln th'e 'meantime the carrier is moved upward bythe cam until the roll f5 is riding upon the dwell ofthe cam. As soon as this occurs the. pin h' slides od the flange 2, and the spring lo draws the lever 't' forwardly and forces the wedge under the pin e to carry the pin and the movable member upwardly until the shoe is initially clamped lbetween the jack and the die o. Then as the camrot-atesthe rise y lifts the carrier still` further apredetermined extent to effec'ta'co'mpression' of the work and the indenting of the monogram, trade-mark, or the like in the sle of the shoe. The presence of the spring d2 prevents a rebounding of the wedge' when the said wedge is released by the pin on the cam, with IOO the result that the shoes are evenly marked. It will be observed in this connection that the earrierf has always a predetermined unvarying range of movement, but that the movement of the movable member relatively thereof is dependent upon the thickness of the work inserted between the end of the movable member and the stationary member. Therefore with the machine thus described it is possible to compress the work to the same extent regardless of the thickness of the work. The sliding wedge is moved positively toward inoperative position and yieldingly toward operative position and compensates for variations in the thickness of the work.

Having thus explained the nature of the invention and described a way of constructing and using the same, although without attempting to set forth all of the forms in which it may be made or all of the modes of its use, I declare that what l claim is- 1. A machine of the character described, comprising two coacting members of which one is adapted to receive and support a shoe, a carrier for one of said members relatively to which the member is movable, a wedgeinserted between said member and its carrier, means for actuating said wedge to move said member until it is stopped by the work between it and the other member, means for imparting a predetermined unvarying movement to one of said members to compress the work to a predetermined extent, and a powershaft for actuating said means.

2. A machine of the character described, comprising coacting members of which one is adapted for the reception and support of a shoe, a carrier for one of said members, a wedgeinserted between said memberand said carrier and supported by said carrier, a powershaft, means on said shaft for imparting an unvarying range of movement to said carrier, and a Variable movement to said wedge to compress the work between the said members to the same extent irrespective of its thickness.

3. A machine of the character described comprising coacting members ot which one is adapted to receive and support a shoe, a carrier for said shoe-supporting member, a wedge interposed between said member and said carrier, said wedge supporting said member, means for yieldingly moving said wedge and said member relatively to the carrier until the said member is stopped by the initial compression of the work between said members, means for moving one of said members a predetermined extent to compress the work, and a shaft for actuating the said means.

4. A machine of the character described, comprising a stationary member consisting of a die, a movable member consisting of a jack adapted to receive and support a shoe,

a carrier for said movable member, a wedge interposed between said member and said carrier, means for imparting a predetermined range of movement to said carrier, means for actuating said wedge to move said movable member until itis stopped by the initial compression of the work between said members anda common driving-shaft, substantially as described.

5. A machine of the character described, comprising a stationary member, a movable member, a carrier for the said movable member, a bar movable in said carrier for supporting the movable member, a spring interposed between said movable member and said bar, a wedge interposed between the said bar and said carrier, means for imparting a predetermined range of movement to said carrier, and means for effecting a variable movement to said wedge, the movement of said wedge varying inversely as the thickness of the work increases.

6. A machine of the character described comprising a stationary member, a movable member, a carrier, a cam for imparting a predetermined movement to said carrier, a wedge interposed between said member and said carrier, a pivoted lever connected to said wedge, a spring for yieldingly moving said lever to carry the wedge toward operative position, and a pin on said cam for moving said lever and the wedge toward inoperative position, substantially as described.

In testimony whereof I have atlixed my signature in presence of two witnesses.

JOHN J. HEYS.

Witnesses:

M. B. MAY, Gno. D. HALL. 

